1144557523 has 2 divisors, whose sum is σ = 1144557524. Its totient is φ = 1144557522.

The previous prime is 1144557503. The next prime is 1144557571. The reversal of 1144557523 is 3257554411.

It is a weak prime.

It is an emirp because it is prime and its reverse (3257554411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144557523 is a prime.

It is not a weakly prime, because it can be changed into another prime (1144557503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572278761 + 572278762.

It is an arithmetic number, because the mean of its divisors is an integer number (572278762).

Almost surely, 2^1144557523 is an apocalyptic number.

1144557523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144557523 is an equidigital number, since it uses as much as digits as its factorization.

1144557523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84000, while the sum is 37.

The square root of 1144557523 is about 33831.3098031986. The cubic root of 1144557523 is about 1046.0341777698.

The spelling of 1144557523 in words is "one billion, one hundred forty-four million, five hundred fifty-seven thousand, five hundred twenty-three".